groovy.util
[Java] Class XmlSlurper

java.lang.Object
  org.xml.sax.helpers.DefaultHandler
      groovy.util.XmlSlurper

public class XmlSlurper
extends DefaultHandler

Parse XML into a document tree that may be traversed similar to XPath expressions. For example:

 def rootNode = new XmlSlurper().parseText(
    '<root><one a1="uno!"/><two>Some text!</two></root>' )

 assert rootNode.name() == 'root'
 assert rootNode.one[0].@a1 == 'uno!'
 assert rootNode.two.text() == 'Some text!'
 rootNode.children().each { assert it.name() in ['one','two'] }
 

Note that in some cases, a 'selector' expression may not resolve to a single node. For example:

 def rootNode = new XmlSlurper().parseText(
    '''<root>
         <a>one!</a>
         <a>two!</a>
       </root>''' )

 assert rootNode.a.size() == 2
 rootNode.a.each { assert it.text() in ['one!','two!'] }
 

Authors:

John Wilson

See Also:

GPathResult

XmlSlurper

public XmlSlurper()

Creates a non-validating and non-namespace-aware XmlSlurper which does not allow DOCTYPE declarations in documents.

throws:

ParserConfigurationException if no parser which satisfies the requested configuration can be created.

throws:

SAXException for SAX errors.

XmlSlurper

public XmlSlurper(boolean validating, boolean namespaceAware)

Creates a XmlSlurper which does not allow DOCTYPE declarations in documents.

throws:

ParserConfigurationException if no parser which satisfies the requested configuration can be created.

throws:

SAXException for SAX errors.

Parameters:

validating - true if the parser should validate documents as they are parsed; false otherwise.

namespaceAware - true if the parser should provide support for XML namespaces; false otherwise.

XmlSlurper

public XmlSlurper(boolean validating, boolean namespaceAware, boolean allowDocTypeDeclaration)

Creates a XmlSlurper.

throws:

ParserConfigurationException if no parser which satisfies the requested configuration can be created.

throws:

SAXException for SAX errors.

Parameters:

validating - true if the parser should validate documents as they are parsed; false otherwise.

namespaceAware - true if the parser should provide support for XML namespaces; false otherwise.

allowDocTypeDeclaration - true if the parser should provide support for DOCTYPE declarations; false otherwise.

XmlSlurper

public XmlSlurper(XMLReader reader)

XmlSlurper

public XmlSlurper(SAXParser parser)

characters

public void characters(char[] ch, int start, int length)

endDocument

public void endDocument()

endElement

public void endElement(String namespaceURI, String localName, String qName)

getDTDHandler

public DTDHandler getDTDHandler()

getDocument

public GPathResult getDocument()

Returns:

The GPathResult instance created by consuming a stream of SAX events Note if one of the parse methods has been called then this returns null Note if this is called more than once all calls after the first will return null

getEntityResolver

public EntityResolver getEntityResolver()

getErrorHandler

public ErrorHandler getErrorHandler()

getFeature

public boolean getFeature(String uri)

getProperty

public Object getProperty(String uri)

parse

public GPathResult parse(InputSource input)

Parse the content of the specified input source into a GPathResult object

throws:

SAXException Any SAX exception, possibly wrapping another exception.

throws:

IOException An IO exception from the parser, possibly from a byte stream or character stream supplied by the application.

Parameters:

input - the InputSource to parse

Returns:

An object which supports GPath expressions

parse

public GPathResult parse(File file)

Parses the content of the given file as XML turning it into a GPathResult object

throws:

SAXException Any SAX exception, possibly wrapping another exception.

throws:

IOException An IO exception from the parser, possibly from a byte stream or character stream supplied by the application.

Parameters:

file - the File to parse

Returns:

An object which supports GPath expressions

parse

public GPathResult parse(InputStream input)

Parse the content of the specified input stream into an GPathResult Object. Note that using this method will not provide the parser with any URI for which to find DTDs etc. It is up to you to close the InputStream after parsing is complete (if required).

throws:

SAXException Any SAX exception, possibly wrapping another exception.

throws:

IOException An IO exception from the parser, possibly from a byte stream or character stream supplied by the application.

Parameters:

input - the InputStream to parse

Returns:

An object which supports GPath expressions

parse

public GPathResult parse(Reader in)

Parse the content of the specified reader into a GPathResult Object. Note that using this method will not provide the parser with any URI for which to find DTDs etc. It is up to you to close the Reader after parsing is complete (if required).

throws:

SAXException Any SAX exception, possibly wrapping another exception.

throws:

IOException An IO exception from the parser, possibly from a byte stream or character stream supplied by the application.

Parameters:

in - the Reader to parse

Returns:

An object which supports GPath expressions

parse

public GPathResult parse(String uri)

Parse the content of the specified URI into a GPathResult Object

throws:

SAXException Any SAX exception, possibly wrapping another exception.

throws:

IOException An IO exception from the parser, possibly from a byte stream or character stream supplied by the application.

Parameters:

uri - a String containing the URI to parse

Returns:

An object which supports GPath expressions

parseText

public GPathResult parseText(String text)

A helper method to parse the given text as XML

throws:

SAXException Any SAX exception, possibly wrapping another exception.

throws:

IOException An IO exception from the parser, possibly from a byte stream or character stream supplied by the application.

Parameters:

text - a String containing XML to parse

Returns:

An object which supports GPath expressions

setDTDHandler

public void setDTDHandler(DTDHandler dtdHandler)

setEntityBaseUrl

public void setEntityBaseUrl(URL base)

Resolves entities against using the supplied URL as the base for relative URLs

Parameters:

base - The URL used to resolve relative URLs

setEntityResolver

public void setEntityResolver(EntityResolver entityResolver)

setErrorHandler

public void setErrorHandler(ErrorHandler errorHandler)

setFeature

public void setFeature(String uri, boolean value)

setKeepWhitespace

public void setKeepWhitespace(boolean keepWhitespace)

Parameters:

keepWhitespace - If true then whitespace before elements is kept. The default is to discard the whitespace.

setProperty

public void setProperty(String uri, Object value)

startDocument

public void startDocument()

startElement

public void startElement(String namespaceURI, String localName, String qName, Attributes atts)

startPrefixMapping

public void startPrefixMapping(String tag, String uri)

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